A fastener made of high-strength alloy material

Abstract

This utility model discloses a fastening connector for high-strength alloy materials, including a fastening connector body. The fastening connector body is inserted into a sheet metal part A, and the surface of the sheet metal part A is covered by a sheet metal part B. The fastening connector body includes a force-bearing seat installed at the bottom of the sheet metal part A, and a fixing stud is fixedly disposed on the surface of the force-bearing seat. In this fastening connector for high-strength alloy materials, two sets of locking plates A are bent downward at 90 degrees and cover the side wall of the fixing seat, and two sets of locking plates B are bent upward at 90 degrees and cover the side wall of the fixing nut, thereby limiting the fixing nut and ensuring that even if vibration occurs during use, the fixing nut on the fixing stud will not loosen, thus ensuring the reliability and stability of the fastening connector body during operation.

Description

Technical Field

[0001] This utility model relates to the field of fasteners, specifically a fastener made of high-strength alloy material. Background Technology

[0002] The material properties of aluminum alloys make them suitable for applications in aerospace, automotive, high-speed rail, and machinery. Compared to steel, aluminum alloys offer three main advantages: First, they reduce equipment weight, resulting in increased payload, reduced consumption, improved performance, enhanced safety, reduced damage to roads and bridges, and extended lifespan. Second, they reduce corrosion maintenance costs, eliminating the need for painting and allowing for easy cleaning while maintaining an aesthetically pleasing appearance. Third, they allow for the design of additional aesthetically pleasing decorative elements, such as polished trim pieces, bumpers, fuel tanks, and pedals. Existing automotive fasteners, when in use, are subjected to high-frequency vibrations of the motor (typically 2000-15000 rpm) and the weight load of the chassis battery pack (which accounts for 30% to 50% of the total vehicle weight). This causes the fasteners to be subjected to "high-frequency low-amplitude" or "low-frequency high-amplitude" vibrations for a long time, which can easily exceed the anti-loosening torque of the threaded pair, leading to gradual loosening. Utility Model Content

[0003] The purpose of this invention is to provide a fastening connector for high-strength alloy materials to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, a fastening connector for high-strength alloy materials is provided, comprising a fastening connector body, wherein the fastening connector body is inserted into a sheet metal part A, and the surface of the sheet metal part A is covered by a sheet metal part B. The fastening connector body includes a force-bearing seat installed at the bottom of the sheet metal part A, and a fixing stud is fixedly provided on the surface of the force-bearing seat. At the same time, the fixing stud passes through the sheet metal part A and the sheet metal part B and is screwed and fixed with a fixing nut.

[0005] Furthermore, the sheet metal parts A and B are fixedly connected by a fastening connector body, and a fixing seat is fixedly provided on the surface of the sheet metal part B.

[0006] Furthermore, the fastening connector body also includes a locking mechanism and a spring washer, with the spring washer covering the bottom of the fixing nut and being sleeved on the fixing stud and fixed by the fixing nut.

[0007] Furthermore, the locking mechanism is disposed between the fixed seat and the spring washer, and the locking mechanism includes a locking seat, a through hole, a locking piece A, and a locking piece B.

[0008] Furthermore, the locking seat is circular, and two sets of locking plates A and B are respectively installed on the outer circumference of the locking seat.

[0009] Furthermore, the locking seat has a through hole in the middle, and the through hole is circular, with a fixing stud inserted inside the through hole.

[0010] Furthermore, the two sets of locking plates A and B are distributed relative to each other along the outer circumference of the locking seat, and the ends of locking plates A and B are rounded.

[0011] Furthermore, the two sets of locking plates A are bent downwards at 90 degrees to cover the side wall of the fixing seat, and the two sets of locking plates B are bent upwards at 90 degrees to cover the side wall of the fixing nut.

[0012] Compared with the prior art, the beneficial effects of this utility model are: two sets of locking plates A are bent downward at 90 degrees to cover the side wall of the fixing seat, and two sets of locking plates B are bent upward at 90 degrees to cover the side wall of the fixing nut, thereby realizing the limiting work of the fixing nut. This ensures that even if vibration occurs during use, the fixing nut on the fixing stud will not loosen, thus guaranteeing the reliability and stability of the fastening connector body during operation. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a cross-sectional view of the structure of this utility model; Figure 4 This is a bottom view of the structure of this utility model; Figure 5 This is a schematic diagram of the structural locking mechanism of this utility model.

[0014] The following numbers are labeled in the diagram: 100, Sheet metal part A; 200, Sheet metal part B; 201, Fixing seat; 300, Fastening connector body; 31, Force-bearing seat; 32, Fixing stud; 33, Fixing nut; 331, Spring washer; 34, Locking mechanism; 341, Locking seat; 342, Through hole; 343, Locking plate A; 344, Locking plate B. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5This utility model provides a fastening connector for high-strength alloy materials, including a fastening connector body 300, which is inserted into a sheet metal part A100, and the surface of the sheet metal part A100 is covered by a sheet metal part B200. The fastening connector body 300 includes a force-bearing seat 31 installed at the bottom of the sheet metal part A100, and a fixing stud 32 is fixedly provided on the surface of the force-bearing seat 31. At the same time, the fixing stud 32 passes through the sheet metal part A100 and the sheet metal part B200 and is screwed and fixed with a fixing nut 33.

[0017] Working principle: During use, after fixing sheet metal parts A100 and B200, the fixing studs 32 on the surface of the force-bearing seat 31 are passed through sheet metal parts A100, B200, locking mechanism 34, and spring washer 331 in sequence, and then fixed with fixing nuts 33. After installation, the locking mechanism 34 is as shown in the instruction manual. Figure 5 After tightening the fixing stud 32, use pliers or other tools to bend the two sets of locking plates A343 downwards by 90 degrees to cover the side wall of the fixing seat 201, and bend the two sets of locking plates B344 upwards by 90 degrees to cover the side wall of the fixing nut 33. This achieves the limiting work of the fixing nut 33, so that even if vibration occurs during use, the fixing nut 33 on the fixing stud 32 will not loosen, ensuring the reliability and stability of the fastening connector body 300 during operation. In a preferred embodiment, sheet metal part A100 and sheet metal part B200 are fixedly connected by fastening connector body 300, and a fixing seat 201 is fixedly provided on the surface of sheet metal part B200.

[0018] The fastening connector body 300 also includes a locking mechanism 34 and a spring washer 331, with the spring washer 331 covering the bottom of the fixing nut 33. At the same time, the spring washer 331 is sleeved on the fixing stud 32 and fixed by the fixing nut 33.

[0019] In a preferred embodiment, the locking mechanism 34 is disposed between the fixed seat 201 and the spring washer 331. The locking mechanism 34 includes a locking seat 341, a through hole 342, a locking piece A343 and a locking piece B344.

[0020] The locking base 341 is circular, and two sets of locking plates A343 and B344 are respectively installed on the outer circumference of the locking base 341.

[0021] The locking seat 341 has a through hole 342 in the middle, and the through hole 342 is circular. A fixing stud 32 is inserted inside the through hole 342.

[0022] Two sets of locking plates A343 and B344 are distributed relative to each other along the outer circumference of the locking seat 341, and the ends of locking plates A343 and B344 are rounded.

[0023] Two sets of locking plates A343 are bent downwards at 90 degrees to cover the side wall of the fixing seat 201, and two sets of locking plates B344 are bent upwards at 90 degrees to cover the side wall of the fixing nut 33.

[0024] Through the basic combination of the fixing stud 32, fixing nut 33 and spring washer 331, the spring washer 331 can offset the preload reduction after initial assembly; the two sets of locking plates A343 of the locking mechanism 34 are bent downward 90 degrees to cover the side wall of the fixing seat 201, and the two sets of locking plates B344 are bent upward 90 degrees to cover the side wall of the fixing nut 33, forming a bidirectional mechanical limit, which can directly limit the circumferential rotation and axial displacement of the fixing nut 33. Even if high-frequency vibration occurs during use, it can completely prevent the fixing stud 32 and fixing nut 33 from loosening, solving the failure problem of traditional single anti-loosening structure in complex vibration environment; The fixing process is as follows: the fixing stud 32 passes through sheet metal part A100, sheet metal part B200, locking mechanism 34, spring washer 331 in sequence, and then is fixed with fixing nut 33. After installation, the locking mechanism 34 is as shown in the instruction manual. Figure 5 In this state, subsequent bending of the locking plate only requires conventional tools such as pliers, without the need for special equipment. This ensures the fitting and fixing accuracy of sheet metal parts A100 and B200, and also reduces the difficulty of on-site assembly. The fixing stud 32 extends from the surface of the force-bearing seat 31 and passes through sheet metal parts A100 and B200 in sequence, forming a continuous force path of force-bearing seat 31, sheet metal parts, locking mechanism 34 and fixing nut 33, which can distribute vibration stress to multiple components. At the same time, the bending and fitting of locking plate A343 with fixing seat 201 and locking plate B344 with fixing nut 33 further strengthens the overall connection of each component, avoids structural deformation caused by local stress concentration, and ensures the fixing stability during long-term use.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fastening connector for high-strength alloy materials, comprising a fastening connector body (300), characterized in that: The fastening connector body (300) is inserted into the sheet metal part A (100), and the surface of the sheet metal part A (100) is covered with sheet metal part B (200). The fastening connector body (300) includes a force-bearing seat (31) installed at the bottom of the sheet metal part A (100), and a fixing stud (32) is fixedly provided on the surface of the force-bearing seat (31). At the same time, the fixing stud (32) passes through the sheet metal part A (100) and the sheet metal part B (200) and is screwed and fixed with the fixing nut (33).

2. The fastening connector for high-strength alloy materials according to claim 1, characterized in that: The sheet metal part A (100) and sheet metal part B (200) are fixedly connected by a fastening connector body (300), and a fixing seat (201) is fixedly provided on the surface of sheet metal part B (200).

3. A fastening connector for high-strength alloy materials according to claim 2, characterized in that: The fastening connector body (300) also includes a locking mechanism (34) and a spring washer (331), with the spring washer (331) covering the bottom of the fixing nut (33) and the spring washer (331) being sleeved on the fixing stud (32) and fixed by the fixing nut (33).

4. A fastening connector for high-strength alloy materials according to claim 3, characterized in that: The locking mechanism (34) is disposed between the fixed seat (201) and the spring washer (331). The locking mechanism (34) includes a locking seat (341), a through hole (342), a locking piece A (343) and a locking piece B (344).

5. A fastening connector for high-strength alloy materials according to claim 4, characterized in that: The locking seat (341) is circular, and two sets of locking plates A (343) and locking plates B (344) are respectively installed on the outer circumference of the locking seat (341).

6. A fastening connector for high-strength alloy materials according to claim 5, characterized in that: The locking seat (341) has a through hole (342) in the middle, and the through hole (342) is circular. A fixing stud (32) is inserted inside the through hole (342).

7. A fastening connector for high-strength alloy materials according to claim 5, characterized in that: The two sets of locking plates A (343) and B (344) are distributed relative to each other along the outer circumference of the locking seat (341), and the ends of locking plates A (343) and B (344) are rounded.

8. A fastening connector for high-strength alloy materials according to claim 7, characterized in that: The two sets of locking plates A (343) are bent downwards at 90 degrees to cover the side wall of the fixing seat (201), and the two sets of locking plates B (344) are bent upwards at 90 degrees to cover the side wall of the fixing nut (33).

Images